Oliveira TCD, Campos Neto IAD, Aguiar-Oliveira MHD, Pereira FDA. Evaluation of parathyroid function and mineral metabolism in psychiatric patients using lithium salts.
ACTA ACUST UNITED AC 2015;
58:619-24. [PMID:
25211444 DOI:
10.1590/0004-2730000002983]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Accepted: 05/12/2014] [Indexed: 01/07/2023]
Abstract
OBJECTIVE
To evaluate parathyroid function and mineral metabolism in psychiatric patients users of lithium salts.
MATERIALS AND METHODS
We measured the serum levels of calcium, ionized calcium, inorganic phosphorus, alkaline phosphatase, albumin, parathyroid hormone (PTH), urea, creatinine, 25-hydroxy-vitamin D and lithium of 35 patients diagnosed with bipolar disorder in use of lithium carbonate (LC) for at least one year (Lithium Group - LG) and 35 healthy subjects (Control Group - CG).
RESULTS
The LG and CG were matched by sex and age. There was only statistic difference in relation to the levels of PTH and ionized calcium, with p < 0.004 and p < 0.03, respectively. Secondary form of hyperparathyroidism (HPT) was found in eight (22.8%) LG patients and in none of the CG. There was no correlation between lithemia, usage time and dosage of LC.
CONCLUSION
Our data demonstrate that lithium may create an imbalance in the parathyroid axis, characterized by elevated levels of PTH.
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